Commit-ID: a2e8461a2ce5e8140b7374eb68af0d09e36e07ff
Gitweb: http://git.kernel.org/tip/a2e8461a2ce5e8140b7374eb68af0d09e36e07ff
Author: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
AuthorDate: Wed, 23 Mar 2011 13:10:31 +0100
Committer: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
CommitDate: Wed, 23 Mar 2011 20:22:06 +0100
genirq: Provide locked setter for chip, handler, name
Some irq_set_type() callbacks need to change the chip and the handler
when the trigger mode changes. We have already a (misnomed) setter
function for the handler which can be called from irq_set_type().
Provide one which allows to set chip and name as well. Put the
misnomed function under the COMPAT switch and provide a replacement.
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
---
include/linux/irqdesc.h | 29 ++++++++++++++++++++++++-----
1 files changed, 24 insertions(+), 5 deletions(-)
diff --git a/include/linux/irqdesc.h b/include/linux/irqdesc.h
index 1595f91..15e6c39 100644
--- a/include/linux/irqdesc.h
+++ b/include/linux/irqdesc.h
@@ -171,25 +171,44 @@ static inline int irq_has_action(unsigned int irq)
return desc->action != NULL;
}
-#ifndef CONFIG_GENERIC_HARDIRQS_NO_COMPAT
-static inline int irq_balancing_disabled(unsigned int irq)
+/* caller has locked the irq_desc and both params are valid */
+static inline void __irq_set_handler_locked(unsigned int irq,
+ irq_flow_handler_t handler)
{
struct irq_desc *desc;
desc = irq_to_desc(irq);
- return desc->status & IRQ_NO_BALANCING_MASK;
+ desc->handle_irq = handler;
}
-#endif
/* caller has locked the irq_desc and both params are valid */
+static inline void
+__irq_set_chip_handler_name_locked(unsigned int irq, struct irq_chip *chip,
+ irq_flow_handler_t handler, const char *name)
+{
+ struct irq_desc *desc;
+
+ desc = irq_to_desc(irq);
+ irq_desc_get_irq_data(desc)->chip = chip;
+ desc->handle_irq = handler;
+ desc->name = name;
+}
+
+#ifndef CONFIG_GENERIC_HARDIRQS_NO_COMPAT
static inline void __set_irq_handler_unlocked(int irq,
irq_flow_handler_t handler)
{
+ __irq_set_handler_locked(irq, handler);
+}
+
+static inline int irq_balancing_disabled(unsigned int irq)
+{
struct irq_desc *desc;
desc = irq_to_desc(irq);
- desc->handle_irq = handler;
+ return desc->status & IRQ_NO_BALANCING_MASK;
}
+#endif
static inline void
irq_set_lockdep_class(unsigned int irq, struct lock_class_key *class)
--
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